Brookhaven, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brookhaven, a borough in Delaware County, Pennsylvania.
Overnight
66°F
Mostly Cloudy
Mostly cloudy, with a low around 66. North wind around 5 mph.
7-day forecast for Brookhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Mostly Cloudy | 5 mph N | 0% |
| Tuesday | 86°F | Mostly Sunny | 5 mph NE | 0% |
| Tuesday Night | 68°F | Mostly Cloudy | 0 to 5 mph E | 7% |
| Wednesday | 85°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 72% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 5 mph S | 59% |
| Thursday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 27% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 37% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 43% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 36% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 36% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 16% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 16% |
| Monday | 91°F | Sunny | 5 to 10 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov) for Brookhaven (39.871, -75.391). Updated through the day.
Growing snapshot for Brookhaven
Last spring frost
Mar 30
First fall frost
Nov 16
Growing season
230 days
Hardiness zone
7b
More local growing data for Brookhaven: nearby ZIP 19015 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Marcus Hook, Pa (3.5 mi from Brookhaven). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.